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Companies / Healthcare / Spyre Therapeutics, Inc.
SYRE

Spyre Therapeutics, Inc.

HealthcarePharmaceutical Preparations
Ticker SYREWALTHAM, MAFiscal year ends DecemberBook value per share $13.49Diluted shares 81.7M

Spyre Therapeutics, Inc. (NASDAQ: SYRE) is a clinical-stage biotechnology company pioneering long-acting antibodies and antibody combinations to redefine the standard of care for inflammatory bowel disease and rheumatic diseases. The company's pipeline includes extended half-life antibodies targeting α4β7, TL1A, and… From the company’s description.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$0.00M
0.00%
$-155.20M
+25.4% year over year
Last 12 mo $-178.92M
-21.70%
+18.5 percentage points
Last 12 mo -16.25%
Cash & financing
$-169.25M
−7.5% year over year
Last 12 mo $-208.94M
$-169.25M
−7.5% year over year
Last 12 mo $-208.94M
—
64.1M
+36.2% year over year
Last 12 mo 81.7M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Spyre Therapeutics, Inc. does

In the company’s own words

Spyre Therapeutics, Inc. (NASDAQ: SYRE) is a clinical-stage biotechnology company pioneering long-acting antibodies and antibody combinations to redefine the standard of care for inflammatory bowel disease and rheumatic diseases. The company's pipeline includes extended half-life antibodies targeting α4β7, TL1A, and IL-23 in development as monotherapies and pair-wise combinations designed to enable quarterly or twice-annual subcutaneous maintenance dosing.

The company's lead program, SPY001, is a highly potent and selective anti-α4β7 monoclonal antibody in Phase 2 development for ulcerative colitis and Crohn's disease. SPY002 and SPY072 are anti-TL1A antibodies being developed for inflammatory bowel disease and rheumatic diseases respectively, while SPY003 is an anti-IL-23 antibody for IBD. Spyre is also advancing four combination programs: SPY120 combining anti-α4β7 and anti-TL1A mechanisms, SPY130 combining anti-α4β7 and anti-IL-23, and SPY230 combining anti-TL1A and anti-IL-23.

The company initiated its SKYLINE Phase 2 platform trial in May 2025 evaluating SPY001, SPY002, SPY003, and pairwise combinations in patients with moderately to severely active ulcerative colitis, with induction data expected beginning in the second quarter of 2026. In September 2025, Spyre initiated the SKYWAY Phase 2 basket trial evaluating SPY072 in rheumatoid arthritis, psoriatic arthritis, and axial spondyloarthritis, with proof-of-concept data expected in the fourth quarter of 2026.

Spyre's intellectual property portfolio includes multiple patent families covering compositions of matter, methods of use, and pharmaceutical formulations across its programs, with expected patent expirations ranging from 2044 to 2046. The company licenses its core technology from Paragon Therapeutics pursuant to exclusive worldwide license agreements and outsources all manufacturing and supply activities to third-party manufacturers including WuXi Biologics. As of December 31, 2025, Spyre employed 102 full-time employees. The company was formed through the acquisition of Spyre Therapeutics' assets by Aeglea BioTherapeutics, which subsequently changed its name to Spyre Therapeutics in November 2023.

Company details
Sector
Healthcare
Industry
Pharmaceutical Preparations
Headquarters
WALTHAM, MA
Fiscal year end
December
CIK
1636282
SIC
2834

Financial performance, year by year

Fiscal 2016–2025 · USD
$-374.54M$-267.28M$-160.03M$-52.77M$54.49M2016201720182019202020212022202320242025Last 12 moLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Spyre Therapeutics, Inc. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

285
funds hold it
0 of 35
superinvestors hold it
$2.68B
held by funds, at market
36.9%
of shares held by funds

Largest fund holders · Spyre Therapeutics, Inc.’s weight in each

0.26%of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.01%of fund net assets
Fidelity Growth Company Fund
FDGRX · Fidelity Mt. Vernon Street Trust
0.19%of fund net assets
iShares Russell 2000 ETF
IWM · iShares Trust
0.20%of fund net assets
1.10%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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